Talking-machine record.



A. D. JONES, DECD.

I. w. cAIIIIIIAcK, ADMINISTRATOR.

TALKING MACHINE RECORD.

APPLICATION FILED FEB. 2s. 1914.

1128.6 :Il @o Patented Dec. 24, 1918.

IIIITIIIESSES 6 j ATWRNEYS peratures and are brittle and easily broken an sra'rns trayrnnr carica.

AIN'A D. JONES, OF PHILADIPHIA, PENNSYLVANIA, ASSIGNOR OF FORTY ON'- HUNDREDTHS TO FRANK LYSTER, OF PHILADELPHIA,.PENNSYLVANIAg J. W. CAMMACK ADMINISTRATOR OF SAID ALVA D. JONES, DECEASED.

TALKINGMACHINE RECORD.

Specification of letters Patent.

Application filed February 2B, 1914. Serial No. 821,678.

To all whom z't may concern:

Be it known that I, ALVA D. Jonas, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Talking-Machine Record, of which the following is a specification.y V

My invention consists of a record for talking machines having a reinforcing support for the record material supporting and confining the same.

It further consists of a duplex record in which two record surfaces are provided, so that one disk will carry two records which may each be' reproduced by reversing the disk.

It further consists of such a reinforced record having a central hub or bushing adapted to engage the central stud of the turn-table. r

It further consists of such a reinforced record having means for protecting. the edges of the compound disk against injury.

It further consists of providing a record with means for insuring its true and uniform rotation with the turn-table.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

Owing to the fragility of the compounds from which records for talking machines are usually made, a narrow limit to the diameter of the record and, consequently, to the piece reproduced, has existe as the fragile disks, if made of large diameter, are liable to sag and thus distort the record owing to the frailty of the material, and are liable to easily break, either from their own weight or by slight taps or shocks. Also, owing to -the mass of composition from which the majority of records are made being shellac or similar resinous'substance and coloring pigments and strengthening ingredients, such record-disks have been liable to become softened and sag under high temunder low temperatures, thus precluding the making of record-disks beyond very limited diameters and confining the pieces to be reproduced within narrow time limits.

It is to the principal purpose of making records of greater diameters than has heretofore been possible that this invention is directed.

The annexed drawings and the followin description set forth in detail, mechanica forms embodying the invention, such detail construction being illustrative of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings- Figure 1 represents a perspective view of one-half of the reinforcing foundation forming`a part of my improved record.

4ig. 2 represents an edge-view of a turntable of a talking-machine and a diametrical section of the record.

Fig. 3 represents a perspective view of a broken-away piece of the record.

Fig. 4 represents a perspective view of a record embodying my lnvention in a slightly different form. Fig. 5 rcpresents an edge view of the foundation isk used in the form of Fig. 4, but on a larger scale.

Fig. 6 represents a sectional detail view of a portion of a disk embodying another form of my invention.

Fig. 7 represents a perspective detail view of a portion of a foundation disk embodying still another form of my invention.'

Fig. 8 represents a sectional detail view of the complete record embodying such form.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings,the reference numeral 1 indicates a circular reinforcing or foundation disk of metal, such, as aluminum, on account of its light weight, or any other metal or alloy of any substance combining strength and stiffness with comparative lightness. The periphery of the disk is formed with a standing flange, 2, preferably projecting on both sides of the dis and the body of the disk is preferably formed with anchoring apertures, 3, of any suitable or desired configuration and arrangement. A

hub-sleeve or bushing, 4c, is rovided in the center of the disk and exten s to both sides of the same. Disks or layers, 5, of the record-material are located against the faces of the reinforcing foundation disk, being outwardly'confined by the peripheral Harige may be placed in the foundation disk, either 4heated to soften it and then pressed in place andl im ressed with the record-groove, or softene by heat during the pressmg process. When a duplex record 1s formed, both sides of the foundation disk can be treatedv at the same time'. The softened compound in either case enters the apertures 1n the foundation disk, thus anchoring the record sheets to the same, as indicated at 6, and uniting the two record sheets when a duplex disk is formed. The hub-sleeve lis adapted `to fit upon the central stud, 7 of the turntable, 12, and prevents injur to the composition covering of the disk y contact with such stud. The central portion, 8, of the surface of the record-disk is preferabl depressed for the reception of the usual abel, 9, indicating the subject of the record, d1rections of use and other matter. The edges of the eripheral flan es of the reinforcing foundation extend eyond the record surface, so that the record-disk when resting upon the turn-table will have its record-surface raised from thesurface of the turntable, and such edges are serrated or interrupted to form teeth, 10, or similar rojec` tions, which will engage the upper ace of the turn-table, which is usually covered with cloth, felt or other soft material, and thus prevent any slippin of the record as it rotates and insuring t e rotation of the record being identical with that of the turn-table. The extended peripheral flange being beyond the surface of the record, will permit of records being stacked and packed for storage or transportation with their recordsurfaces out of contact with one another.

. The projecting peripheral flange protects the perillhery of the composition sheet against c ipping or other injury, and the double flange projecting on .both sides of the record serves as a brace or stifener for the reinforcing foundation disk. By the use of the foundation disk a great savi in the record composition is attained, as t e thickness of the sheetof such material needs only to be slightly in excess of the depth of the record groove, which is rarely more than three thousandths of an inch.

In the form illustrated in Figs. 4 and 5 of the drawings, theange projecting to opposite sides of the foundation disk is formed from tongues, 11, cut out from the periphery naeaeio nesses of the foundation disk and the sheets v or layers of record compound are exaggerated in the drawings for the purpose of clearly illustrating theirformation, and that the foundation dlskvis just sufficiently thick to possessthe necessary stiffness to prevent bending or buckling of the record, and the compound layers forming the record sheets areof a thickness slight y in excess of the maximum depthof the record groove, which rarely in practice exceeds three one-thousandths of an inch.

In the form illustrated in Fig. 6 of the drawings, the foundation disk 1s disclosed as formed without the peripheral flange and without the anchoring apertures; The layers 5 of the record compound are placed upon the opposite faces of the .foundation disk, and their peripheral edges are carried around the tion disk an joined, as at 14, to inclose such disk. The centers of such la ers are retained, as are also preferably t e centers of the previously described record sheets or la ers, by stops, 13, upon the hub-sleeve, w ich may be in the form of flanges or enlargements formed by the sleeve, or in the -form of pins or collars.

In the form illustrated in Figs. 7 and 8 of the drawings, the foundation disk has peripheral tongues, 15, like those illustrated 1n .igs. 4 and 5, but in this form such tongues are bent in opposite directions at a distance from the periphery of the disk, so that each tongue will have a base-portion, 16, flush with the disk, and a tongue-portion, 17, and such tongues alternately pointing to` opposite sides of the disk. The peripheries of the layers or', sheets 5 of the record compound are joined, f as at 18, between the tongues, and bear against the tongue-portions, alternately.

Other modes of applying the principle of my invention may be employed for the mode herein explained. Change may therefore be made as regards the mechanism thus disclosed, provlded the rinciples ofA construction set forth, respectively, in the following claim are employed.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is A talking machine' record, comprising a central foundation disk having apertures therethrough, a central hub sleeve projectin above and below said disk and having en argements at its ends, and sheets of rec- (peripheral edge of the founday mesmo ord material upon the unoer and lower surfaces of said disk, said record material passing through said apertures and the outer peripheral portions of said disk being provided With tongues cut out from the periphery thereof and alternately bent in opposite directions at right angles to the plane of the disks, said tongues protecting the record sheets and their points serving as teeth to engage their surmort.

ALVA D. JONES. Witnesses:

WM. LECHER, C. D. MCVAY. 

